Gregoran calendar
Gregorian Calendar
Gregorian date
Gregorian date
-1
Section::::Abstract.
Old Style and New Style dates
888602
Gregorian date
-1
Section::::Abstract.
Julian calendar
15651
Gregorian Date
Gregorian era
Gregorian Calender
Gregorian month
Christian calendar
Christian calendar
-1
Section::::Julian reform.:Adoption of the Julian calendar.

Julian calendar
15651
Common calendar
Catholic calendar
Gregorian calender
Implementation of the Gregorian calendar
-1
Section::::Calendars in use.:Religious calendars.

Calendar
5377
Implementation of the Gregorian calendar
Implementation of the Gregorian calendar
-1
Section::::Abstract.
Old Style and New Style dates
888602
Gregorian calendar
-1
Section::::History.:Modern reforms.

Calendar
5377
Gregorian calendar
-1
Section::::Abstract.
Leap year
17895
Gregorian calendar
-1
Section::::Abstract.
Old Style and New Style dates
888602
Gregorian calendar
-1
Section::::Abstract.
Julian calendar
15651
Christian Calendar
Gregorean calendar
Gregorian reform of the calendar
-1
Section::::History.:Modern reforms.

Calendar
5377
Gregorian reform of the calendar
Western calendar
International calendar
Gregorian Christian calendar
gregorian month
gregorian reform of calendar
catholic calendar
common calendar
gregorean calendar
gregorian era
gregoran calendar
implementation of gregorian calendar
gregorian date
western calendar
christian calendar
gregorian calender
gregorian calendar
international calendar
gregorian christian calendar